drivers/media/pci/intel/ipu6/ipu6-isys-csi2.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /* Copyright (C) 2013--2024 Intel Corporation */
   3
   4 #ifndef IPU6_ISYS_CSI2_H
   5 #define IPU6_ISYS_CSI2_H
   6
   7 #include <linux/container_of.h>
   8
   9 #include "ipu6-isys-subdev.h"
  10 #include "ipu6-isys-video.h"
  11
  12 struct media_entity;
  13 struct v4l2_mbus_frame_desc_entry;
  14
  15 struct ipu6_isys_video;
  16 struct ipu6_isys;
  17 struct ipu6_isys_csi2_pdata;
  18 struct ipu6_isys_stream;
  19
  20 #define NR_OF_CSI2_VC           16
  21 #define INVALID_VC_ID           -1
  22 #define NR_OF_CSI2_SINK_PADS    1
  23 #define CSI2_PAD_SINK           0
  24 #define NR_OF_CSI2_SRC_PADS     8
  25 #define CSI2_PAD_SRC            1
  26 #define NR_OF_CSI2_PADS         (NR_OF_CSI2_SINK_PADS + NR_OF_CSI2_SRC_PADS)
  27
  28 #define CSI2_CSI_RX_DLY_CNT_TERMEN_CLANE_A              0
  29 #define CSI2_CSI_RX_DLY_CNT_TERMEN_CLANE_B              0
  30 #define CSI2_CSI_RX_DLY_CNT_SETTLE_CLANE_A              95
  31 #define CSI2_CSI_RX_DLY_CNT_SETTLE_CLANE_B              -8
  32
  33 #define CSI2_CSI_RX_DLY_CNT_TERMEN_DLANE_A              0
  34 #define CSI2_CSI_RX_DLY_CNT_TERMEN_DLANE_B              0
  35 #define CSI2_CSI_RX_DLY_CNT_SETTLE_DLANE_A              85
  36 #define CSI2_CSI_RX_DLY_CNT_SETTLE_DLANE_B              -2
  37
  38 struct ipu6_isys_csi2 {
  39         struct ipu6_isys_subdev asd;
  40         struct ipu6_isys_csi2_pdata *pdata;
  41         struct ipu6_isys *isys;
  42         struct ipu6_isys_video av[NR_OF_CSI2_SRC_PADS];
  43
  44         void __iomem *base;
  45         u32 receiver_errors;
  46         unsigned int nlanes;
  47         unsigned int port;
  48 };
  49
  50 struct ipu6_isys_csi2_timing {
  51         u32 ctermen;
  52         u32 csettle;
  53         u32 dtermen;
  54         u32 dsettle;
  55 };
  56
  57 struct ipu6_csi2_error {
  58         const char *error_string;
  59         bool is_info_only;
  60 };
  61
  62 #define ipu6_isys_subdev_to_csi2(__sd) \
  63         container_of(__sd, struct ipu6_isys_csi2, asd)
  64
  65 #define to_ipu6_isys_csi2(__asd) container_of(__asd, struct ipu6_isys_csi2, asd)
  66
  67 s64 ipu6_isys_csi2_get_link_freq(struct ipu6_isys_csi2 *csi2);
  68 int ipu6_isys_csi2_init(struct ipu6_isys_csi2 *csi2, struct ipu6_isys *isys,
  69                         void __iomem *base, unsigned int index);
  70 void ipu6_isys_csi2_cleanup(struct ipu6_isys_csi2 *csi2);
  71 void ipu6_isys_csi2_sof_event_by_stream(struct ipu6_isys_stream *stream);
  72 void ipu6_isys_csi2_eof_event_by_stream(struct ipu6_isys_stream *stream);
  73 void ipu6_isys_register_errors(struct ipu6_isys_csi2 *csi2);
  74 void ipu6_isys_csi2_error(struct ipu6_isys_csi2 *csi2);
  75 int ipu6_isys_csi2_get_remote_desc(u32 source_stream,
  76                                    struct ipu6_isys_csi2 *csi2,
  77                                    struct media_entity *source_entity,
  78                                    struct v4l2_mbus_frame_desc_entry *entry);
  79
  80 #endif /* IPU6_ISYS_CSI2_H */